EXAM 3 PSY 260 FREQUENTLY TESTED ACTUAL
QUESTIONS WITH CORRECT ANSWERS
Question 1.
When examining an association claim using a bar graph, an association is indicated by which of the
following?
ANSWER
A difference in the height between the bars
Question 2.
An independent-groups design is also known as a ________.
ANSWER
Between-subjects design
Question 3.
Random selection enhances ________ and random assignment enhances ________.
ANSWER
External validity; internal validity
Question 4.
Dr. Alfonse, a developmental psychologist, conducts a study to determine whether children prefer
books with drawn illustrations or with photographs. A group of 45 first-graders are shown two copies
of a book (Little Red Riding Hood) at the same time. Although the story is the same, one book is
illustrated with drawings and the other is illustrated with photos. Students are then asked to indicate
which book they prefer. This is an example of which of the following designs?
ANSWER
Concurrent-measures design
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, Question 5.
Martin has found a correlation of r=.18 between the two variables of caffeine consumption and frontal
lobe activity. This correlation is more likely to be statistically significant if:
ANSWER
Martin used a larger number of subjects
Question 6.
When evaluating the external validity of an association claim, which of the following is the most
important issue to consider?
ANSWER
The way the sample was selected from the population
Question 7.
Which of the following is true of moderators?
ANSWER
They can inform external validity.
Question 8.
Dr. Uchida's finding that the relationship between emotional well-being and PTSD symptoms is
stronger for men than for women suggests which of the following?
ANSWER
Participant sex is a moderating variable.
Question 9.
Which of the following studies is an example of a longitudinal design?
ANSWER
Dr. Benson's study in which she measured people's spatial manipulation ability in August and
measured their ability again in May after they had taken two semesters of art classes.
2/5
QUESTIONS WITH CORRECT ANSWERS
Question 1.
When examining an association claim using a bar graph, an association is indicated by which of the
following?
ANSWER
A difference in the height between the bars
Question 2.
An independent-groups design is also known as a ________.
ANSWER
Between-subjects design
Question 3.
Random selection enhances ________ and random assignment enhances ________.
ANSWER
External validity; internal validity
Question 4.
Dr. Alfonse, a developmental psychologist, conducts a study to determine whether children prefer
books with drawn illustrations or with photographs. A group of 45 first-graders are shown two copies
of a book (Little Red Riding Hood) at the same time. Although the story is the same, one book is
illustrated with drawings and the other is illustrated with photos. Students are then asked to indicate
which book they prefer. This is an example of which of the following designs?
ANSWER
Concurrent-measures design
1/5
, Question 5.
Martin has found a correlation of r=.18 between the two variables of caffeine consumption and frontal
lobe activity. This correlation is more likely to be statistically significant if:
ANSWER
Martin used a larger number of subjects
Question 6.
When evaluating the external validity of an association claim, which of the following is the most
important issue to consider?
ANSWER
The way the sample was selected from the population
Question 7.
Which of the following is true of moderators?
ANSWER
They can inform external validity.
Question 8.
Dr. Uchida's finding that the relationship between emotional well-being and PTSD symptoms is
stronger for men than for women suggests which of the following?
ANSWER
Participant sex is a moderating variable.
Question 9.
Which of the following studies is an example of a longitudinal design?
ANSWER
Dr. Benson's study in which she measured people's spatial manipulation ability in August and
measured their ability again in May after they had taken two semesters of art classes.
2/5
